Definition: Antrum is a word in Greek, meaning "mouth." In its original sense, antrum refers to the opening between the anus and vagina at the end of the female reproductive tract. However, it can be used metaphorically or figuratively for a person's heart, soul, or emotions during their most vulnerable times. The definition varies based on context: in a male context, it is often associated with an inner speaking voice that provides guidance and wisdom; in a female context, it may symbolize the innermost part of the body that represents a woman's intimate feelings and desires.